An endophytic Coniochaeta velutina producing broad spectrum antimycotics

Xie, Jianping; Strobel, Gary A.; Feng, Tao; Ren, Huishuang; Mends, Morgan Tess; Zhou, Zeyang; Geary, Brad

doi:10.1007/s12275-015-5105-5

Cited by 14 publications

(9 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Like Periconia , Coniochaeta requires further taxonomic and phylogenetic studies 37 . About 70 species and six synonyms are included in the genus Coniochaeta and most of the isolates are reported from dung, necrotic wood, soil and plant surfaces 38 .…”

Section: Resultsmentioning

confidence: 99%

Two new cellulolytic fungal species isolated from a 19th-century art collection

Coronado-Ruíz¹,

Avendaño²,

Escudero-Leyva

et al. 2018

Sci Rep

View full text Add to dashboard Cite

The archive of the Universidad de Costa Rica maintains a nineteenth-century French collection of drawings and lithographs in which the biodeterioration by fungi is rampant. Because of nutritional conditions in which these fungi grew, we suspected that they possessed an ability to degrade cellulose. In this work our goal was to isolate and identify the fungal species responsible for the biodegradation of a nineteenth-century art collection and determine their cellulolytic activity. Fungi were isolated using potato-dextrose-agar (PDA) and water-agar with carboxymethyl cellulose (CMC). The identification of the fungi was assessed through DNA sequencing (nrDNA ITS and α-actin regions) complemented with morphological analyses. Assays for cellulolytic activity were conducted with Gram’s iodine as dye. Nineteen isolates were obtained, of which seventeen were identified through DNA sequencing to species level, belonging mainly to genera Arthrinium, Aspergillus, Chaetomium, Cladosporium, Colletotrichum, Penicillium and Trichoderma. For two samples that could not be identified through their ITS and α-actin sequences, a morphological analysis was conducted; they were identified as new species, named Periconia epilithographicola sp. nov. and Coniochaeta cipronana sp. nov. Qualitative tests showed that the fungal collection presents important cellulolytic activity.

show abstract

Section: Resultsmentioning

confidence: 99%

Two new cellulolytic fungal species isolated from a 19th-century art collection

Coronado-Ruíz¹,

Avendaño²,

Escudero-Leyva

et al. 2018

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Preliminary analyses suggest that these endophytes have the capacity to expand and reshape the generic concept for Coniochaeta and to revise perspectives on the ecological traits and evolution of species in this genus (del Olmo-Ruiz 2012). Such studies are of interest in part because several species of Coniochaeta are known as plant or human pathogens, and others produce biologically active compounds , Damm & Crous 2010, Khan et al 2013, Xie et al 2015.…”

Section: Introductionmentioning

confidence: 99%

“…As currently circumscribed, Coniochaeta includes species from diverse substrates, including butter, dung, wood, soil, uranium mine wastewater, and phylogenetically diverse plants (e.g., Weber 2002;Raja et al 2012;Vázquez-Campos et al 2014;Xie et al 2015). With the anamorph formalized and segregated from morphologically similar genera by Gams (2000), the holomorph described in detail by Weber (2002), and the circumscription updated by García et al (2006), Coniochae taceae was segregated from Sordariaceae by germ-slits in the ascospores and a phialidic anamorph.…”

Section: Introductionmentioning

confidence: 99%

Coniochaeta endophytica sp. nov., a foliar endophyte associated with healthy photosynthetic tissue of Platycladus orientalis (Cupressaceae)

Harrington

Olmo-Ruiz

U’Ren

et al. 2019

Plant and Fungal Systematics

View full text Add to dashboard Cite

The ecologically diverse genus Coniochaeta (Coniochaetaceae, Ascomycota) contains numerous endophytic strains that occur in healthy leaves and lichen thalli in temperate and boreal North America. These endophytes frequently represent undescribed species. Here we examine two endophytic isolates of Coniochaeta from healthy photosynthetic tissue of Platycladus orientalis (Cupressaceae), a conifer cultivated for horticultural use in Arizona, USA. On the basis of morphology, in vitro assays, phylogenetic analyses of two loci, and analyses of whole genome data, we designate these endophytes as a novel species, Coniochaeta endophytica sp. nov. Strains of C. endophytica are closely related to an isolate from a native lichen in North Carolina, which we also characterize here. We compare C. endophytica with two known species that appear to be close relatives: C. prunicola, associated with wood necrosis in stonefruit trees in South Africa, and C. cephalothecoides, isolated from soil in Asia. The new species is distinct in phylogenetic, in vitro, and whole-genome analyses from C. prunicola, and differs slightly in conidiophore morphology from that species. Although available sequence data for C. cephalothecoides are of uncertain relation to the type specimen for that species, our results support the distinctiveness of C. endophytica on the basis of morphology, perithecial formation, and phylogenetic analyses. We discuss the challenge of identifying new species in the context of fungal ecology surveys, such as those for endophytes, which often rely only on a single locus and can misidentify taxa based on their closest matches in public databases or simple comparisons of barcode sequences alone.

show abstract

“…are a group of hemipteran insects that have cultural and economic importance, as they produce a pigment called carminic In the carmine cochineal guts, we found one species of endophytic fungi belonging to the genus Coniochaeta. Coniochaeta species are main endophytes of trees and grasses with some species well known for their production of a broad spectrum of antimycotics (Xie et al, 2015).…”

Section: Carmine Cochinealmentioning

confidence: 99%